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umka2103 [35]
3 years ago
8

John purchased 1/4 lbs of hamburger for $0.75 how much did the hamburger cost per pound

Mathematics
1 answer:
sattari [20]3 years ago
8 0

there are 4 1/4 per a whole

 so multiply 0.75 x 4

0.75 x 4 = 3.00 dollars per pound

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zvonat [6]

Answer:

Rational and integer i.e option A and C

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Why did you circle all of them ?
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Using traditional methods, it takes 95 hours to receive a basic flying license. A new license training method using Computer Aid
Snowcat [4.5K]

Answer:

There is not sufficient evidence to support the claim that the technique performs differently than the traditional method.

Step-by-step explanation:

The null hypothesis is:

H_{0} = 95

The alternate hypotesis is:

H_{1} \neq 95

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

A researcher used the technique with 260 students and observed that they had a mean of 94 hours. Assume the standard deviation is known to be 6.

This means, respectively, that n = 260, X = 94, \sigma = 6

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z = \frac{94 - 95}{\frac{6}{\sqrt{260}}}

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The pvalue is:

2(P(Z < -2.69))

P(Z < -2.69) is the pvalue of Z when X = -2.69, which looking at the z-table, is 0.0036

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7 0
3 years ago
Mx-y when m = 5, x= 3, and y =8
Lapatulllka [165]
Mx - y

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7 is your answer.
5 0
3 years ago
Read 2 more answers
The sum of two numbers is 3.1. Twice the large number is 7 more than 3 times the smaller number. What are the numbers?
Degger [83]

Let the two numbers be x and y where x is greater than y.

So;

x + y = 3.1 ... (i)

2x - 3y = 7 ... (ii)

This forms a set of simultaneous equations (i) and (ii)

Solving the simultaneous equations by elimination;

We multiply (i) by 2 and (ii)  by 1 to get:

2x + 2y = 6.2 ... (i)

2x - 3y = 7 ... (ii)

Subtracting (i) - (ii) we get;

5y = -0.8

y = -0.8/5 = -0.16

x = 3.1 - -0.16 = 3.26

The numbers are 3.26 and -0.16.


7 0
3 years ago
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